In-situ remediation system for volatile organic compounds with deep recharge mechanism

Patent · Mon Jan 01 00:00:00 EST 2001

OSTI ID:873950

Looney, Brian B ^[1]; Nichols, Ralph L ^[2]; Phifer, Mark A ^[2]

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1. Aiken, SC
2. Augusta, SC

A method and apparatus for the treatment and remediation of a contaminated aquifer in the presence of an uncontaminated aquifer at a different hydraulic potential. The apparatus consists of a wellbore inserted through a first aquifer and into a second aquifer, an inner cylinder within the wellbore is supported and sealed to the wellbore to prevent communication between the two aquifers. Air injection is used to sparge the liquid having the higher static water level and, to airlift it to a height whereby it spills into the inner cylinder. The second treatment area provides treatment in the form of aeration or treatment with a material. Vapor stripped in sparging is vented to the atmosphere. Treated water is returned to the aquifer having the lower hydraulic potential.

• Research Organization: Savannah River Site (SRS), Aiken, SC (United States)
• DOE Contract Number: AC09-96SR18500
• Assignee: Westinghouse Savannah River Company (Aiken, SC)
• Patent Number(s): US 6280625
• OSTI ID: 873950
• Country of Publication: United States
• Language: English

Related Subjects

in-situ
remediation
volatile
organic
compounds
deep
recharge
mechanism
method
apparatus
treatment
contaminated
aquifer
presence
uncontaminated
hydraulic
potential
consists
wellbore
inserted
inner
cylinder
supported
sealed
prevent
communication
aquifers
air
injection
sparge
liquid
static
water
level
airlift
height
whereby
spills
provides
form
aeration
material
vapor
stripped
sparging
vented
atmosphere
treated
returned
apparatus consists
water level
inner cylinder
organic compound
organic compounds
volatile organic
in-situ remediation
air injection
situ remediation
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